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Java Character isUpperCase(int codePoint) Method

Java isUpperCase(int codePoint) method is a part of Character class. This method is used to check whether the specified Unicode codepoint character is an uppercase character or not.

This method also supports supplementary characters. A character is uppercase if its general category type, provided by Character.getType(ch), is UPPERCASE_LETTER. or it has contributory property Other_Uppercase as defined by the Unicode Standard.


public static boolean isUpperCase(int codePoint)


The parameter passed is the Unicode codepoint character to be checked whether it is an uppercase character.


Returns the boolean value true if the specified codepoint character is an uppercase character else return false

Example 1:

Here, the characters are checked whether they are uppercase characters or not.

public class StudyTonight
	public static void main(String[] args)
		int cp1 = 73;  
		int cp2 = 60;  
		int cp3 = 119;  
		int cp4 = 80;   
		int cp5 = 1232;  

		boolean b1 = Character.isUpperCase(cp1);  
		boolean b2 = Character.isUpperCase(cp2);  
		boolean b3 = Character.isUpperCase(cp3);  
		boolean b4 = Character.isUpperCase(cp4);  
		boolean b5 = Character.isUpperCase(cp5);  

		System.out.println((char)cp1 +" is uppercase??::  "+b1);  
		System.out.println((char)cp2 +" is uppercase??::  "+b2);  
		System.out.println((char)cp3 +" is uppercase??::  "+b3);  
		System.out.println((char)cp4 +" is uppercase??::  "+b4);  
		System.out.println((char)cp5 +" is uppercase??::  "+b5);  

I is uppercase??:: true
< is uppercase??:: false
w is uppercase??:: false
P is uppercase??:: true
? is uppercase??:: true

Example 2:

Here is a user-defined example where anyone using this code can put a value of his choice and get the equivalent output.

import java.util.Scanner; 
public class StudyTonight
	public static void main(String[] args)
			System.out.print("Enter the Unicode character: ");  
			Scanner sc = new Scanner(;        
			int cp = sc.nextInt(); 
			boolean b = Character.isUpperCase(cp);
			System.out.println((char)cp + " is UpperCase??: "+b);
		catch(Exception e)
			System.out.println("Invalid Input!!");

Enter the Unicode character: 77
M is UpperCase??: true
Enter the Unicode character: 96
` is UpperCase??: false

Live Example:

Here, you can test the live code example. You can execute the example for different values, even can edit and write your examples to test the Java code.

About the author:
A Computer Science and Engineering Graduate(2016-2020) from JSSATE Noida. JAVA is Love. Sincerely Followed Sachin Tendulkar as a child, M S Dhoni as a teenager, and Virat Kohli as an adult.